diff --git a/plugins/code_block.rb b/plugins/code_block.rb
index c70e181..46620d8 100644
--- a/plugins/code_block.rb
+++ b/plugins/code_block.rb
@@ -79,7 +79,7 @@ module Jekyll
       source = "<figure class='code'>"
       source += @caption if @caption
       if @filetype
-        source += " #{highlight(code, @filetype)}</figure>"
+        source += "#{highlight(code, @filetype)}</figure>"
       else
         source += "#{tableize_code(code.lstrip.rstrip.gsub(/</,'&lt;'))}</figure>"
       end